/Engine/Plugins/Runtime/MeshModelingToolset/Source/ModelingOperators/Public/ModelingOperators.h
ownership of the internal mesh thatCalculateResult()produced
[TUniquePtr](API\Runtime\Core\Templates\TUniquePtr)< [FDynamicMesh3](API\Runtime\GeometryCore\DynamicMesh\FDynamicMesh3) > ExtractResult()